{"product_id":"gravity-7-24-industrial-analog-ph-meter-kit-v2-arduino-raspberry-pi","title":"Gravity: 7\/24 Industrial Analog pH Meter Kit V2 (Arduino, Raspberry Pi)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe Gravity: Analog pH Sensor \/ Meter Pro Kit V2 stands out for its industrial-grade durability, exceptional accuracy, and user-friendly design. It is an essential tool for anyone involved in precise water quality monitoring and management.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIndustrial-Grade Performance \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned for continuous operation, this sensor supports \u003cb\u003e7\/24-hour monitoring\u003c\/b\u003e with a lifespan exceeding\u003cb\u003e 4380 hours\u003c\/b\u003e, ensuring consistent performance in demanding environments.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExceptional Accuracy \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAchieving a \u003cb\u003emeasurement accuracy of ±0.1 pH\u003c\/b\u003e at 25°C, the device employs a two-point calibration method, enabling users to effortlessly calibrate using standard buffer solutions (4.0 and 7.0). This precision is vital for applications where accurate pH levels are critical.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRobust Design and Compatibility \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe sensor operates within a wide voltage range of 3.3 to 5.5V, making it compatible with various main control boards like \u003cb\u003eArduino and LattePanda\u003c\/b\u003e. The plug-and-play design, featuring a BNC connector, simplifies setup and reduces installation time.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38010-content1.webp?v=1791331952\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eArduino Connection Diagram\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eAttention：\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e1. The BNC connector and the signal conversion board must be kept dry and clean, otherwise, it will affect the input impedance, resulting in an inaccurate measurement. If it is damp, it needs to be dried.\u003c\/p\u003e\n\u003cp\u003e2. The signal conversion board cannot be directly placed on a wet or semiconductor surface, otherwise, it will affect the input impedance, resulting in an inaccurate measurement. It is recommended to use the nylon pillar to fix the signal conversion board, and allow a certain distance between the signal conversion board and the surface.\u003c\/p\u003e\n\u003cp\u003e3. The sensitive glass bubble in the head of the pH probe should avoid touching the hard material. Any damage or scratches will cause the electrode to fail.\u003c\/p\u003e\n\u003cp\u003e4. After completing the measurement, disconnect the pH probe from the signal conversion board. The pH probe should not be connected to the signal conversion board without the power supply for a long time.\u003c\/p\u003e\n\u003cp\u003e5. The bottle cap of the probe contains protective liquid (3.3mol\/L KCL). Even if the bottle cap is screwed tightly, some protective liquid may still leak around the bottle cap, forming white crystals. But as long as there is still protective liquid in the bottle cap, it will not affect the life and accuracy of the probe. So please use it with confidence. It is recommended that the white crystals be poured back into the protective liquid in the bottle cap.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3.3~5.5V wide voltage input\u003c\/li\u003e\n\u003cli\u003eHardware filtered output signal, low jitter\u003c\/li\u003e\n\u003cli\u003eGravity connector and BNC connector, plug-and-play, no soldering required\u003c\/li\u003e\n\u003cli\u003eThe software library supports two-point calibration and automatically identifies standard buffer solution\u003c\/li\u003e\n\u003cli\u003eUniform size and connector, convenient for the design of mechanical structures\u003c\/li\u003e\n\u003cli\u003eIndustrial Probe - Support 7*24 Measurement\u003c\/li\u003e\n\u003cli\u003eUpgraded Transmitter - More Accurate and Stable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Conversion Board (Transmitter) V2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Voltage: 3.3~5.5V\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 0~3.0V\u003c\/li\u003e\n\u003cli\u003eProbe Connector: BNC\u003c\/li\u003e\n\u003cli\u003eSignal Connector: PH2.0-3P\u003c\/li\u003e\n\u003cli\u003eMeasurement Accuracy: ±0.1@25℃\u003c\/li\u003e\n\u003cli\u003eDimension: 42mm*32mm\/1.66*1.26in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003epH Probe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProbe Type: Industrial Grade\u003c\/li\u003e\n\u003cli\u003eDetection Range: 0~14\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 0~60°C\u003c\/li\u003e\n\u003cli\u003eAccuracy : ± 0.1pH (25 ℃) \u003c\/li\u003e\n\u003cli\u003eResponse Time: \u0026lt;1min\u003c\/li\u003e\n\u003cli\u003eProbe Life: 7*24hours \u0026gt;0.5 years (depending on the water quality)\u003c\/li\u003e\n\u003cli\u003eCable Length: 500cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003epH Probe (Industrial Grade)\u003cspan\u003e \u003c\/span\u003ex1\u003c\/li\u003e\n\u003cli\u003epH Signal Conversion Board\u003cspan\u003e \u003c\/span\u003eV2\u003cspan\u003e \u003c\/span\u003ex1\u003c\/li\u003e\n\u003cli\u003eGravity Analog Sensor Cable\u003cspan\u003e \u003c\/span\u003ex1\u003c\/li\u003e\n\u003cli\u003eWaterproof Gasket\u003cspan\u003e \u003c\/span\u003ex2\u003c\/li\u003e\n\u003cli\u003eScrew Cap for BNC Connector\u003cspan\u003e \u003c\/span\u003ex1\u003c\/li\u003e\n\u003cli\u003eM3 * 10 nylon pillar\u003cspan\u003e \u003c\/span\u003ex4\u003c\/li\u003e\n\u003cli\u003eM3 * 5 screws\u003cspan\u003e \u003c\/span\u003ex8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0169-v2\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/blog-21377.html\" target=\"_blank\"\u003e[Read the 2026 Hydroponic Monitoring Guide] — Expert tips on sensor selection and system design.\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/community.dfrobot.com\/projects-smart%20hydroponics.html\" target=\"_blank\"\u003e[Explore Smart Hydroponics Projects] — See how others integrated this sensor into their setup.\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/forum\/search\/SEN0169-V2\" target=\"_blank\"\u003e[Get Troubleshooting Help] — Search technical discussions and fixes for this pH sensor.\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581019324493,"sku":"E38010-001","price":117.53,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38010-win1.jpg?v=1791331980","url":"https:\/\/www.mlab.com.au\/products\/gravity-7-24-industrial-analog-ph-meter-kit-v2-arduino-raspberry-pi","provider":"MLAB","version":"1.0","type":"link"}